.223 Rem | 5.56 NATO

FN

FN 36318 Military Collector M4 Rifle in 5.56x45mm NATO with 16-Inch Barrel and Collapsible Stock

FN

FN 36320 M16 Military Collector 5.56x45mm NATO Semi-Auto Rifle with 20-Inch Barrel and Black Finish

Bersa

Bersa BAR15RMFT AR-15 Rifle with 16-inch Barrel, 30+1 Capacity, Optics Ready

Bersa

Bersa BAR15RMGP AR-15 Rifle with 16-Inch Barrel, Magpul Stock, and Optics Ready Features

Ruger

Ruger AR-556 MPR 5.56x45mm NATO Rifle with 18-Inch Barrel and Magpul SL Stock

Daniel Defense

Daniel Defense DDM4 V7 5.56 NATO Rifle with 16-inch Threaded Barrel and Ambidextrous Safety

Daniel Defense

Daniel Defense DDM4 V7 California Compliant 5.56 NATO Rifle with 16-Inch Barrel and SoftTouch Stock

Daniel Defense

Daniel Defense DDM4 V9 CA Compliant 5.56 NATO Rifle with 16-Inch Barrel and SoftTouch Overmolding Stock

Daniel Defense

Daniel Defense DDM4 M4A1 5.56 NATO Rifle with 14.5-Inch Threaded Barrel and Flat Dark Earth Handguard

Daniel Defense

Daniel Defense DD M4A1 Carbine Rifle 5.56x45mm NATO, 14-Inch Barrel, Black Hardcoat Anodized, Model 0208806027055

Daniel Defense

Daniel Defense 0208815126011 DDM4 M4A1 5.56x45mm NATO 30+1 14.50" Barrel w/Flash Suppressor, Mil-Spec Brown Cerakote, 6 Position Stock w/SoftTouch Overmolding

Colt

Colt Mfg LE6920SOCOM M4A1 Carbine 5.56 NATO with 14.5-inch Barrel and Collapsible Stock